378781712 has 20 divisors (see below), whose sum is σ = 740751696. Its totient is φ = 187620000.

The previous prime is 378781693. The next prime is 378781717. The reversal of 378781712 is 217187873.

It is not an unprimeable number, because it can be changed into a prime (378781717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108914 + ... + 112337.

Almost surely, 2^378781712 is an apocalyptic number.

It is an amenable number.

378781712 is a deficient number, since it is larger than the sum of its proper divisors (361969984).

378781712 is a wasteful number, since it uses less digits than its factorization.

378781712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221366 (or 221360 counting only the distinct ones).

The product of its digits is 131712, while the sum is 44.

The square root of 378781712 is about 19462.3151757441. The cubic root of 378781712 is about 723.5407585851.

The spelling of 378781712 in words is "three hundred seventy-eight million, seven hundred eighty-one thousand, seven hundred twelve".